Menke-Hennekam Syndrome 2, also known as mkhk2, is related to rubinstein-taybi syndrome 2 and rubinstein-taybi syndrome 1. An important gene associated with Menke-Hennekam Syndrome 2 is EP300 (E1A Binding Protein P300). Affiliated tissues include bone and lung, and related phenotypes are depressed nasal bridge and delayed speech and language development